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Volume 50 Number 1
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Research articles

ScienceAsia 49 (2023): 344-352 |doi: 10.2306/scienceasia1513-1874.2023.021


Dependence of applied electric fields on electrical properties of BCZT ceramic


Narongdetch Boothrawonga,b, Lalita Taweeb, Suwanan Thammarongb, Pharatree Jaitab,c,d, Dennis Russell Sweatmanb, Gobwute Rujijanagulb,d,e,f,*, Tawee Tunkasirib,d

 
ABSTRACT:     It is vital to understand the characteristics of piezoelectric ceramics at high electric fields to use them effectively. The effects of applied electric fields such as applied electric and poling fields on the electrical characteristics of a (Ba, Ca)(Ti, Zr portable power station)O3 or BCZT ceramic system were investigated in this research. A solid-state reaction process was used to make the BCZT ceramic. There was no impurity in the sample, which had a mixed phase of rhombohedral, tetragonal, and orthorhombic phases. A high degree of dielectric tunability was found under the applied electric fields. Large improvements in polarization prosperities were reported with non-linear relationships with the applied electric fields. The ferroelectric data matched with the electric field-induced strain behavior data, while the field-induced strain behavior data revealed a near-linear relationship with the field. There was also a significant reduction in the degree of strain hysteresis. In addition, the poling field had a significant impact on the d33 and g33 values. The piezoelectric coefficients discovered in this study suggest that this material has promise for use in piezoelectric and energy harvesting devices.

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a Graduate PhD?s Degree Program in Applied Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200 Thailand
b Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200 Thailand
c Office of Research Administration, Chiang Mai University, Chiang Mai 50200 Thailand
d Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200 Thailand
e Research Center in Physics and Astronomy, Faculty of Science, Chiang Mai University, Chiang Mai 50200 Thailand
f Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200 Thailand

* Corresponding author, E-mail: rujijanagul@yahoo.com

Received 5 Apr 2022, Accepted 3 Nov 2022